69.67% is the change from 521 to 884
Calculation steps:
[( 884 - 521 ) ÷ 521] x 100 = 69.67%
Formula
Percentage change = [(884 - 521) / 521] x 100
Subtract the new number by the original number
884 - 521 = 363
363 ÷ 521 = 0.6967370441458733
0.6967370441458733 x 100 = 69.67%